﻿/*
 * 自定义动画效果
 */
define(function (require, exports, module) {
    return function (jquery) {
        jQuery.extend(jQuery.easing,
        {
            def: 'easeOutQuad',
            swing: function (x, t, b, c, d) {
                //alert(jQuery.easing.default);
                return jQuery.easing[jQuery.easing.def](x, t, b, c, d);
            },
            easeInQuad: function (x, t, b, c, d) {
                return c * (t /= d) * t + b;
            },
            easeOutQuad: function (x, t, b, c, d) {
                return -c * (t /= d) * (t - 2) + b;
            },
            easeInOutQuad: function (x, t, b, c, d) {
                if ((t /= d / 2) < 1) return c / 2 * t * t + b;
                return -c / 2 * ((--t) * (t - 2) - 1) + b;
            },
            easeInCubic: function (x, t, b, c, d) {
                return c * (t /= d) * t * t + b;
            },
            easeOutCubic: function (x, t, b, c, d) {
                return c * ((t = t / d - 1) * t * t + 1) + b;
            },
            easeInOutCubic: function (x, t, b, c, d) {
                if ((t /= d / 2) < 1) return c / 2 * t * t * t + b;
                return c / 2 * ((t -= 2) * t * t + 2) + b;
            },
            easeInQuart: function (x, t, b, c, d) {
                return c * (t /= d) * t * t * t + b;
            },
            easeOutQuart: function (x, t, b, c, d) {
                return -c * ((t = t / d - 1) * t * t * t - 1) + b;
            },
            easeInOutQuart: function (x, t, b, c, d) {
                if ((t /= d / 2) < 1) return c / 2 * t * t * t * t + b;
                return -c / 2 * ((t -= 2) * t * t * t - 2) + b;
            },
            easeInQuint: function (x, t, b, c, d) {
                return c * (t /= d) * t * t * t * t + b;
            },
            easeOutQuint: function (x, t, b, c, d) {
                return c * ((t = t / d - 1) * t * t * t * t + 1) + b;
            },
            easeInOutQuint: function (x, t, b, c, d) {
                if ((t /= d / 2) < 1) return c / 2 * t * t * t * t * t + b;
                return c / 2 * ((t -= 2) * t * t * t * t + 2) + b;
            },
            easeInSine: function (x, t, b, c, d) {
                return -c * Math.cos(t / d * (Math.PI / 2)) + c + b;
            },
            easeOutSine: function (x, t, b, c, d) {
                return c * Math.sin(t / d * (Math.PI / 2)) + b;
            },
            easeInOutSine: function (x, t, b, c, d) {
                return -c / 2 * (Math.cos(Math.PI * t / d) - 1) + b;
            },
            easeInExpo: function (x, t, b, c, d) {
                return (t == 0) ? b : c * Math.pow(2, 10 * (t / d - 1)) + b;
            },
            easeOutExpo: function (x, t, b, c, d) {
                return (t == d) ? b + c : c * (-Math.pow(2, -10 * t / d) + 1) + b;
            },
            easeInOutExpo: function (x, t, b, c, d) {
                if (t == 0) return b;
                if (t == d) return b + c;
                if ((t /= d / 2) < 1) return c / 2 * Math.pow(2, 10 * (t - 1)) + b;
                return c / 2 * (-Math.pow(2, -10 * --t) + 2) + b;
            },
            easeInCirc: function (x, t, b, c, d) {
                return -c * (Math.sqrt(1 - (t /= d) * t) - 1) + b;
            },
            easeOutCirc: function (x, t, b, c, d) {
                return c * Math.sqrt(1 - (t = t / d - 1) * t) + b;
            },
            easeInOutCirc: function (x, t, b, c, d) {
                if ((t /= d / 2) < 1) return -c / 2 * (Math.sqrt(1 - t * t) - 1) + b;
                return c / 2 * (Math.sqrt(1 - (t -= 2) * t) + 1) + b;
            },
            easeInElastic: function (x, t, b, c, d) {
                var s = 1.70158; var p = 0; var a = c;
                if (t == 0) return b; if ((t /= d) == 1) return b + c; if (!p) p = d * .3;
                if (a < Math.abs(c)) { a = c; var s = p / 4; }
                else var s = p / (2 * Math.PI) * Math.asin(c / a);
                return -(a * Math.pow(2, 10 * (t -= 1)) * Math.sin((t * d - s) * (2 * Math.PI) / p)) + b;
            },
            easeOutElastic: function (x, t, b, c, d) {
                var s = 1.70158; var p = 0; var a = c;
                if (t == 0) return b; if ((t /= d) == 1) return b + c; if (!p) p = d * .3;
                if (a < Math.abs(c)) { a = c; var s = p / 4; }
                else var s = p / (2 * Math.PI) * Math.asin(c / a);
                return a * Math.pow(2, -10 * t) * Math.sin((t * d - s) * (2 * Math.PI) / p) + c + b;
            },
            easeInOutElastic: function (x, t, b, c, d) {
                var s = 1.70158; var p = 0; var a = c;
                if (t == 0) return b; if ((t /= d / 2) == 2) return b + c; if (!p) p = d * (.3 * 1.5);
                if (a < Math.abs(c)) { a = c; var s = p / 4; }
                else var s = p / (2 * Math.PI) * Math.asin(c / a);
                if (t < 1) return -.5 * (a * Math.pow(2, 10 * (t -= 1)) * Math.sin((t * d - s) * (2 * Math.PI) / p)) + b;
                return a * Math.pow(2, -10 * (t -= 1)) * Math.sin((t * d - s) * (2 * Math.PI) / p) * .5 + c + b;
            },
            easeInBack: function (x, t, b, c, d, s) {
                if (s == undefined) s = 1.70158;
                return c * (t /= d) * t * ((s + 1) * t - s) + b;
            },
            easeOutBack: function (x, t, b, c, d, s) {
                if (s == undefined) s = 1.70158;
                return c * ((t = t / d - 1) * t * ((s + 1) * t + s) + 1) + b;
            },
            easeInOutBack: function (x, t, b, c, d, s) {
                if (s == undefined) s = 1.70158;
                if ((t /= d / 2) < 1) return c / 2 * (t * t * (((s *= (1.525)) + 1) * t - s)) + b;
                return c / 2 * ((t -= 2) * t * (((s *= (1.525)) + 1) * t + s) + 2) + b;
            },
            easeInBounce: function (x, t, b, c, d) {
                return c - jQuery.easing.easeOutBounce(x, d - t, 0, c, d) + b;
            },
            easeOutBounce: function (x, t, b, c, d) {
                if ((t /= d) < (1 / 2.75)) {
                    return c * (7.5625 * t * t) + b;
                } else if (t < (2 / 2.75)) {
                    return c * (7.5625 * (t -= (1.5 / 2.75)) * t + .75) + b;
                } else if (t < (2.5 / 2.75)) {
                    return c * (7.5625 * (t -= (2.25 / 2.75)) * t + .9375) + b;
                } else {
                    return c * (7.5625 * (t -= (2.625 / 2.75)) * t + .984375) + b;
                }
            },
            easeInOutBounce: function (x, t, b, c, d) {
                if (t < d / 2) return jQuery.easing.easeInBounce(x, t * 2, 0, c, d) * .5 + b;
                return jQuery.easing.easeOutBounce(x, t * 2 - d, 0, c, d) * .5 + c * .5 + b;
            }
        });
    }
});